What machines are you running with aux steering and what conditions and terrain are they operating in. We have had machines come in from other areas that needed it where they were working but around here it is pretty flat. The owners would spend ridiculous money on something they didn't need but were unfamiliar with. After it was explained and the Cat dealer agreed they didn't need it they were disconnected to prevent problems with the rest of the system. The old Terex loaders with accumulator systems would fail without the operator knowing it. If you went down the road at high speed and let off the accelerator you lost your steering (more than once) and probably ended up in the ditch.
It's a 966H Cat wheel loader somewhere in Nigeria. The terrain is quite rough, it's a quarry.
My point now is why spending heavy on something you almost don't use?
I'm currently fixing one on 966H Cat wheel loader. The electric motor has burnt, will be sending the picture later as I don't have it now.
I was thinking to tell the owner to not worry about the indicator light that the secondary steering system that is causing the light is an attachment and one can leave it considering the cost of repairing it.
Plus I will also explain it's function to him and leave the decision of fixing it or not for him to take.